JP3685043B2 - Video recording device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a video shooting / recording apparatus that wirelessly transmits a video of a moving object to the subject side for recording.
[0002]
[Prior art]
Conventionally, this type of video recording / recording apparatus includes a fixed imaging unit that captures a moving object or person, means for transmitting the captured video, and a fixed recording unit that receives and records the transmitted video. The recording is converted into an image and provided to the person to be photographed or the person concerned with the subject.
[0003]
[Problems to be solved by the invention]
However, such a conventional video shooting / recording apparatus has a problem that it is difficult to specify a person to be photographed or a person concerned with the subject because there are a large number of subjects that arrive continuously.
[0004]
The present invention has been made to solve such a problem, and provides an excellent video shooting and recording apparatus that does not require an operation of identifying a person to be photographed or a person concerned with a subject.
[0005]
[Means for Solving the Problems]
An image recording apparatus according to the present invention uses an imaging unit that captures an image of an object to be photographed, and an aerial line having a beam-shaped directivity similar to the shooting angle of view of the imaging unit for an image signal output from the imaging unit. A fixed video imaging unit including a transmission unit for wireless transmission, a reception unit for receiving a video signal from the video imaging unit, and a recording unit for recording the video acquired by the reception unit, together with the object to be captured The moving image recording means and the electric field strength detecting section for recording the signal acquired by the receiving section of the video recording means on the recording section only during a period in which the received electric field strength exceeds a preset value have a configuration comprising the video recording means. doing.
[0006]
Further, the image processing apparatus includes an imaging unit that captures an image of an object to be photographed, an audio acquisition unit that acquires audio as an audio signal, and a transmission unit that wirelessly transmits the video and audio signal output from the imaging unit and the audio acquisition unit. From a fixed video imaging means, a receiving section that receives video and audio signals from the video imaging means, and a video recording means that moves together with the object to be photographed, including a recording section that records video and audio acquired by the receiving section. It has the composition which becomes.
[0009]
Furthermore, a plurality of the video imaging means are provided, and the video imaging means is further provided with a start point detector for detecting the recording start time.
[0010]
With these configurations, the moving subject to be photographed itself possesses video data obtained by photographing, so that it is not necessary to specify the subject or the subject concerned.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0012]
FIG. 1 is a diagram showing an outline of a video recording apparatus according to the present invention. In FIG. 1, reference numeral 1 denotes a course through which a moving body such as a vehicle or a pedestrian passes, and 2 denotes video imaging means fixedly arranged along the course 1, which captures the course and wirelessly transmits the video. It has the function to transmit, and the example of arrangement to 12 points of A to L is shown here. Reference numeral 3 denotes video recording means carried or mounted on a moving body such as a vehicle, ship, aircraft or pedestrian moving on the course 1, receiving radio waves from the video imaging means 2, and obtaining and recording video signals. It has a function of recording on a medium. A circle 4 around each image pickup means 2 indicates a transmission range by the transmission radio wave.
[0013]
FIG. 2 is a flowchart showing the flow of operation of the video recording apparatus according to the present invention. The outline of the operation will be described with reference to FIGS.
[0014]
For example, in a theme park, when a moving object carrying a spectator and video recording means 3 reaches the shooting range of the video imaging means 2 in area A (S1), the audience is shot as a subject (S2), and the video signal Is transmitted on the radio wave (S3). The video recording means 3 on the moving body receives the radio wave (S4) and records the acquired video on the recording medium (S5). A video tape, hard disk, floppy disk, ZIP, MD, CD, DVD, IC card, flash memory card, or the like can be used as the recording medium. When shooting is a moving image, if the video imaging unit 2 is always in a state of shooting and transmitting, the video can be recorded only while the video recording unit 3 is in the transmission range 4. When the next shooting area is reached (S6, S1), the user can record his / her own video and record his / her own video in different scenes. This recorded recording medium can be applied to services such as purchasing near the entrance or exit of a theme park, or returning and purchasing a desired video print. Here, the case of recording video during a receivable period has been described (first embodiment). In addition to this, means for detecting that a moving body has reached a preset position on the screen, It is also possible to apply a method in which a start point detection unit and an end point detection unit are provided by means of a point passage detection means using an infrared beam, and only a period from the start point to the end point is photographed, transmitted, received, and recorded. In addition, when shooting is a still image, it is possible to provide a start point detection unit that detects that the moving body has reached the optimal position for shooting, and it is also possible to take a picture based on the detection output (fifth embodiment).
[0015]
In FIG. 1, the transmission range 4 is circular, that is, a non-directional transmission antenna. However, an antenna having a beam-like directivity similar to the shooting angle of view can be used.
[0016]
Although only the video signal has been described above, the video signal and the audio signal can be transmitted and recorded together by adding an audio acquisition unit such as a microphone to the video imaging unit 2 (the second signal). Embodiment).
[0017]
FIG. 3 is a block diagram showing a circuit configuration of the image pickup means 2 of the present invention. FIG. 3A is a basic configuration showing the first and second embodiments, and FIG. It is the structure at the time of providing the starting point detection part which shows this embodiment. In FIG. 3, 11 is an imaging unit, that is, a camera, 12 is an audio acquisition unit, that is, a microphone, and 13 is a transmission unit that transmits a video signal from the imaging unit 11 and an audio signal from the audio acquisition unit 12 as radio waves. Yes, 14 is a transmitting antenna. In addition, reference numeral 15 in FIG. 3B denotes a start point detection unit that detects that the mobile body has reached a preset point. In FIG. 3A, the video signal picked up by the image pickup unit 11 and the sound signal picked up by the sound acquisition unit 12 become a radio frequency signal modulated by the transmission unit 13 and are radiated as radio waves from the transmission antenna 14. In FIG. 3 (b), when it is detected that the moving body has reached a preset point by the start point detector 15, a start signal is transmitted on a radio wave, and is received and recorded by the video recording means 3. Recording can be started regardless of whether to start or to start shooting and transmission when the start point detector 15 detects. In the case of still image shooting, shooting is performed by detection of the start point detection unit 15, and the video data may be transmitted. 3A and 3B, the voice acquisition unit 12 can be omitted when no voice is required (first embodiment).
[0018]
4 is a block diagram showing a circuit configuration of the video recording means 3 of the present invention. FIG. 4 (a) is a basic configuration showing the first and second embodiments, and FIG. 4 (b) is a third configuration. FIG. 4C shows a configuration in the case where an image showing the fourth embodiment is artificially selected. In FIG. 4, 21 is a receiving antenna, 22 is a receiving unit that receives radio waves from the video imaging means 2, 23 is a recording control unit that controls the recording unit, and 24 is video or audio data. It is a recording part which records on a recording medium. Further, 25 in FIG. 4B is an electric field strength detection unit that detects that the electric field strength of the received radio wave exceeds a set value, and 26 in FIG. 4C is for artificially selecting an image. It is a selection operation unit. In FIG. 4A, the radio wave from the video imaging means 2 input to the receiving antenna 21 is received by the receiving unit 22, and is recorded as a video / audio signal by the recording unit 24 under the control of the recording control unit 23. Recorded on a recording medium. In FIG. 4B, an electric field intensity detection unit 25 is added. In the configuration of FIG. 4 (a), recording starts when the video recording means 3 enters the transmission range 4 in FIG. 1. However, the image quality is not good because the electric field is weak, or the recording has started. There is a problem that it is still too early as an image. One countermeasure is to record an image while the image recording means 3 exists in an area that exceeds a preset electric field strength. The electric field strength detecting unit 25 obtains an electric field strength signal from the receiving unit 22 and detects that the set value has been exceeded compared to the set value, and notifies the recording control unit 23 of the detected signal. In FIG. 4C, a selection operation unit 26 is added to the configuration of FIG. In FIG. 1, the moving body occupant determines whether or not to record the images captured by the image capturing means 2 at 12 locations A to L in the recording unit 24, and the selection operation unit 26 for operating the images. is there. By operating this, the recording control unit 23 controls the recording unit 24 to record only the desired video. The above is the description of the operation of the video shooting and recording apparatus of the present invention.
[0019]
In addition, although the example of the theme park was demonstrated above, the same means can be utilized also when performing commemorative photography etc. in a sightseeing spot. In addition, in patrols such as police and security companies, patrolmen carry video recording means 3, obtain video taken by video photographing means 2 installed at the necessary places on the patrol route, take it home, There are also uses such as evidence. If necessary, the video / audio to be recorded can be encrypted and compressed. When the subject moves at high speed, the imaging unit 11 automatically converts the bit rate when data is transmitted, or reduces the number of pixels to support high-speed transmission.
[0020]
【The invention's effect】
As described above, the present invention is composed of the fixed video imaging means and the video recording means mounted on the moving body, and the video imaging means photographs the moving body when the video recording means approaches the video imaging means. By wirelessly transmitting and receiving and recording it with video recording means, only the video about the person to be photographed can be obtained, and the work to identify the person to be photographed from a number of images photographed with a fixed camera as in the past Therefore, it is possible to provide a video shooting and recording apparatus having an excellent effect of not requiring an image.
[Brief description of the drawings]
FIG. 1 is a diagram showing an outline of a video shooting / recording apparatus according to the present invention. FIG. 2 is a flowchart showing an operation flow of the video shooting / recording apparatus according to the present invention. FIG. 1 is a block diagram showing a basic circuit configuration showing a first embodiment, and FIG. 2B is a block diagram showing a circuit configuration including a start point detection unit showing a fifth embodiment of the image pickup means of the present invention. FIG. 4A is a block diagram showing a basic circuit configuration showing the first and second embodiments of the video recording means of the present invention. FIG. 4B is a third embodiment of the video recording means of the present invention. (C) A block diagram showing a circuit configuration for artificially selecting an image showing a fourth embodiment of the video recording means of the present invention.
DESCRIPTION OF SYMBOLS 1 Course 2 Image | video imaging means 3 Image | video recording means 4 Transmission range 11 Imaging part 12 Audio | voice acquisition means 13 Transmission part 14 Transmission antenna 15 Start point detection part 21 Reception antenna 22 Reception part 23 Recording control part 24 Recording part 25 Electric field strength detection Part 26 Selection operation part

Claims (3)

An imaging unit for imaging a subject,
A fixed video imaging means comprising a transmitter for wirelessly transmitting a video signal output from the imaging unit using an antenna having a beam-like directivity similar to a shooting angle of view of the imaging unit;
A receiver for receiving a video signal from the video imaging means;
A video recording means for moving with the object to be photographed, comprising a recording unit for recording the video acquired by the receiving unit;
A video shooting and recording apparatus comprising a video recording means, and an electric field strength detecting section for recording the signal acquired by the receiving section of the video recording means on the recording section only during a period when the received electric field strength exceeds a preset value . An imaging unit for imaging a subject,
Sound acquisition means for acquiring sound and generating a sound signal;
The video shooting and recording apparatus according to claim 1. Arranging a plurality of the video imaging means,
The video imaging means includes a start point detection unit for detecting the start point of recording,
The signal transmitted from the transmitter is received by the receiver of the video recording means,
The video shooting and recording apparatus according to claim 1 or 2, wherein recording to the recording unit is started.

Images